A portable power pack is a device used to power up AC-, DC- and USB-powered electronic devices such as lamps, phones, tablets, computers and laptops. Individuals use them at home during power outages or carry them along for road trips, camp sites or remote work sites.
A portable power pack is chargeable and stores AC power. It provides pollution-free power on demand. Some portable power packs are charged with solar power and others have a jump start feature to provide ready power for vehicle emergencies. They come in different sizes from pocket size to the size of a lunchbox, with their power being directly proportional to their size.